div{
}

body{
    display: flex;
    justify-content: center;
}

#app{
    display: flex;
    width: 80%;
    margin-top: 50px;
    margin-bottom: 100px;

    flex-direction: column;
    alignment: center;
}

#control{
    display: flex;
    flex-direction: row;
}

#data{
    display: flex;
    width: 100%;

    flex-direction: row;
    flex-wrap: wrap;
    justify-content: flex-start;
}

#card{
    height: 170px;
    width: 170px;

    margin: 5px;

    box-shadow: var(--el-box-shadow);
}

#card:hover{
    cursor: pointer;

    box-shadow: var(--el-box-shadow-dark);
    height: 173px;
    width: 173px;
    margin: 2px;
}

.img-item{
    height: 170px;
    width: 170px;
}

.img-item:hover{
    height: 173px;
    width: 173px;
}

#add_button{
    width: 200px;
    height: 50px;

    margin-right: 50px;
}

#upload_button{
    width: 200px;
    height: 50px;
}

.contextmenu {
    margin: 0;
    background: #ffffff;
    z-index: 3000;
    position: absolute;
    list-style-type: none;
    padding: 5px 0;
    border-radius: 10px;
    font-size: 16px;
    font-weight: 200;
    color: #333;
    box-shadow: var(--el-box-shadow-dark);
}

li:hover {
     background: #dedcdc;
 }

li {
    margin: 0;
    padding: 7px 16px;
    cursor: pointer;

    width: 150px;
    height: 30px;

    line-height: 30px;
}